CN109062837A - A kind of usb signal light teletransmission control module and method based on FPGA - Google Patents
A kind of usb signal light teletransmission control module and method based on FPGA Download PDFInfo
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- CN109062837A CN109062837A CN201810595643.3A CN201810595643A CN109062837A CN 109062837 A CN109062837 A CN 109062837A CN 201810595643 A CN201810595643 A CN 201810595643A CN 109062837 A CN109062837 A CN 109062837A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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Abstract
The present invention relates to a kind of usb signal light teletransmission control module and method based on FPGA, transmitting terminal includes switch chip, switch chip connects host side by usb bus, switch chip passes through usb bus running fire sending end conversion chip, transmitting terminal conversion chip passes through the I/O interface signal processing unit of parallel bus running fire sending end FPGA module, the I/O interface signal processing unit of transmitting terminal FPGA module is also connected with switch chip, and the high-speed communication interface of transmitting terminal FPGA module connects transmitting terminal optical module by high-speed serial bus；Receiving end includes receiving end conversion chip, receiving end conversion chip connects USB device by usb bus, receiving end conversion chip connects the I/O interface signal processing unit of receiving end FPGA module by parallel bus, and the high-speed communication interface of receiving end FPGA module connects receiving end optical module by high-speed serial bus；Transmitting terminal optical module is connect with receiving end optical module by optical fiber.
Description
Technical field
The invention belongs to signal remote argon plasma field, it is related to a kind of smooth teletransmission control module and method, especially a kind of base
In the usb signal light teletransmission control module and method of FPGA；The remote biography of usb signal is completed using an optical fiber as transmission medium
It is defeated.
Background technique
USB has high bandwidth, highly reliable, hot-swappable, at low cost etc. as a kind of computer peripheral communication standard interface
Feature is therefore widely used in computer system.
However as the increasingly huge of modern computing control system, under many occasions, console where operator with
Between USB device relatively far apart, usb signal needs to interact between host and USB device by farther away transmission.
And inevitably there is signal decaying after transmitting at a distance, trembling in usb signal as a kind of electric signal
Phenomena such as dynamic deformation, seriously affects signal quality, so that the transmission range of usb signal is enabled to be limited within tens meters, even if
Additional signal repeater, transmission range only several hundred rice.This is in place of the deficiencies in the prior art.
Therefore, in view of the above-mentioned drawbacks in the prior art, provide and design a kind of usb signal light teletransmission control based on FPGA
Module and method；To solve drawbacks described above in the prior art, provides and design a kind of usb signal light teletransmission control based on FPGA
Module and method；It is necessary.
Summary of the invention
It is an object of the present invention to design a kind of USB based on FPGA in view of the above-mentioned drawbacks of the prior art, providing
Signal light teletransmission control module and method, to solve the above technical problems.
To achieve the above object, the present invention provides following technical scheme:
A kind of usb signal light teletransmission control module based on FPGA, it includes transmitting terminal and receiving end, which is characterized in that described
Transmitting terminal includes switch chip, and the first end of switch chip is connected to host side by usb bus, and the second end of switch chip is logical
The first end that usb bus is connected to transmitting terminal conversion chip is crossed, the second end of transmitting terminal conversion chip is connected by parallel bus
I/O interface signal processing unit to the I/O interface signal processing unit of transmitting terminal FPGA module, transmitting terminal FPGA module also connects
It is connected to the third end of switch chip, the high-speed communication interface of transmitting terminal FPGA module is connected to transmitting terminal by high-speed serial bus
Optical module；
The receiving end includes receiving end conversion chip, and the first end of receiving end conversion chip is connected to USB by usb bus and sets
Standby, the second end of receiving end conversion chip is handled single by the I/O interface signal that parallel bus is connected to receiving end FPGA module
The high-speed communication interface of member, receiving end FPGA module is connected to receiving end optical module by high-speed serial bus；
It is connected between transmitting terminal optical module and receiving end optical module by optical fiber.
Preferably, usb protocol is converted to ULPI agreement by transmitting terminal conversion chip；It is passed with realizing by optical fiber
It is defeated.
Preferably, ULPI protocol conversion is usb protocol by receiving end conversion chip；Between realization and USB device
Data transmission.
Preferably, parallel bus is 8bit parallel bus；Realize transmitting terminal conversion chip and transmitting terminal FPGA module
Between I/O interface signal processing unit data transmission, realize receiving end FPGA module I/O interface signal processing unit with connect
Data transmission between receiving end conversion chip.
A kind of usb signal light teletransmission control method based on FPGA, which comprises the following steps:
Step 1: identification USB device；USB device identification process is respectively completed by receiving end and transmitting terminal；Receiving end is completed first
The USB device type recognized is transmitted to transmitting terminal, transmitting terminal and main-machine communication, is completed by the identification to USB device
The identification process of USB device；
Step 2: for USB device enumeration and realizing that data are transmitted.
Preferably, the step 1 the following steps are included:
Step 1.0, USB device are inserted into receiving end, start equipment identification process；
Step 1.1, receiving end FPGA module detect level change, primarily determine USB device speed type；
Step 1.2, receiving end FPGA module launch speed identify handshake operation, are communicated with USB device, determine USB device
Speed type；
USB device is inserted into information and speed type information package by step 1.3, receiving end FPGA module；
Packet is sent to receiving end optical module by step 1.4, receiving end FPGA module in the form of high-speed serial signals, by connecing
Receiving end optical module is converted to optical signal and is sent to transmitting terminal；
Step 1.5, transmitting terminal FPGA module receive the high-speed serial signals for being received and being converted by transmitting terminal optical module, by the information
Packet analyzing determines the USB device and set corresponding signal line of receiving end insertion；
Step 1.6, transmitting terminal FPGA module turn on the switch chip, and host is made to receive usb signal line level change；
The speed that step 1.7, transmitting terminal FPGA module response host issue identifies handshake communication, the USB that notice host is inserted into
The speed type of equipment；
Step 1.8, the resistance for configuring transmitting terminal, simulate corresponding USB device；
Step 1.9 terminates USB device identification process, is prepared to enter into device enumeration and data transfer phase.
Preferably, the step 2 the following steps are included:
Step 2.0, host initiate configuration and data transfer rate stream；
Step 2.1, transmitting terminal FPGA module parse USB data stream type；
The data stream type that step 2.2, transmitting terminal FPGA module are parsed according to step 2.1 determines directly forwarding or replys first
NAK forwards data packet again；
Step 2.3, transmitting terminal FPGA module are packaged the data flow that host issues, and it is sent in the form of high-speed serial signals
To transmitting terminal optical module, transmitting terminal optical module converts optical signal for the high-speed serial signals and is sent to receiving end；
Step 2.4, receiving end FPGA module receive the high-speed serial signals converted by receiving end optical module, and parse the data
Packet；
The data packet is packaged by step 2.5, receiving end FPGA module is sent to USB device by receiving end conversion chip；
Step 2.6, receiving end FPGA module receive and parse through the data packet of USB device reply；
The data packet of the reply is packaged and is sent to receiving end optical module by step 2.7, receiving end FPGA module；
Step 2.8, transmitting terminal FPGA module receive and parse through the data packet of reply；
Step 2.9, the data packet operational order for waiting host next time, directly reply to host for the data packet of the reply；
Step 2.10, the control operation for completing device enumeration or data transmission.
Preferably, the data packet of the reply is packaged and with high speed serialization by receiving end FPGA module in the step 2.7
The form of signal is sent to receiving end optical module；Improve data transfer speed.
The beneficial effects of the present invention are a kind of usb signal light teletransmission control modules based on FPGA provided by the invention
And method, it is mutually indepedent between transmitting terminal and receiving end, optical signal is received and dispatched with transmitting terminal and simulates USB device and host completion
USB information interaction is completed USB information with USB device with receiving end transmitting-receiving optical signal and simulation framework and is interacted.
And usb signal is converted to by ULPI signal by transmitting terminal conversion chip and is conveyed to transmitting terminal FPGA, transmitting terminal
FPGA parses ULPI data packet, and data packet is converted to high-speed serial signals and is sent to transmitting terminal optical module, sends
It holds optical module to complete electrical/optical conversion, is converted to optical signal and carries out teletransmission.The inverse process of the optical signal received by the above process
Complete the conversion of optical signal to usb signal.
In addition, design principle of the present invention is reliable, structure is simple, has very extensive application prospect.
It can be seen that compared with prior art, the present invention have substantive distinguishing features outstanding and it is significant ground it is progressive, implementation
Beneficial effect be also obvious.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of usb signal light teletransmission control module based on FPGA provided by the invention.
Fig. 2 is the stream that USB device is identified in a kind of usb signal light teletransmission control method based on FPGA provided by the invention
Cheng Tu.
Fig. 3 be in a kind of usb signal light teletransmission control method based on FPGA provided by the invention for USB device enumeration simultaneously
Realize the flow chart of data transmission.
Wherein, 1- transmitting terminal, the receiving end 2-, 3- host side, 4-USB equipment, 1.1- switch chip, the conversion of 1.2- transmitting terminal
Chip, 1.3- transmitting terminal FPGA module, 1.4- transmitting terminal optical module, the receiving end 2.1- conversion chip, the receiving end 2.2- FPGA mould
Block, the receiving end 2.3- optical module.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawing and by specific embodiment, and following embodiment is to the present invention
Explanation, and the invention is not limited to following implementation.
Embodiment 1:
As shown in Figure 1, a kind of usb signal light teletransmission control module based on FPGA provided by the invention, it includes 1 He of transmitting terminal
Receiving end 2, the transmitting terminal 1 include switch chip 1.1, and the first end of switch chip 1.1 is connected to host side by usb bus
3, the second end of switch chip 1.1 is connected to the first end of transmitting terminal conversion chip 1.2 by usb bus, and transmitting terminal converts core
The second end of piece 1.2 is connected to the I/O interface signal processing unit of transmitting terminal FPGA module 1.3 by parallel bus, parallel total
Line is 8bit parallel bus；It realizes between transmitting terminal conversion chip and the I/O interface signal processing unit of transmitting terminal FPGA module
Data transmission；Usb protocol is converted to ULPI agreement by transmitting terminal conversion chip；It is transmitted with realizing by optical fiber.It sends
The I/O interface signal processing unit of end FPGA module 1.3 is also connected to the third end of switch chip 1.1, transmitting terminal FPGA module
1.3 high-speed communication interface is connected to transmitting terminal optical module 1.4 by high-speed serial bus；
The receiving end 2 includes receiving end conversion chip 2.1, and the first end of receiving end conversion chip 2.1 is connected by usb bus
To USB device 4, the second end of receiving end conversion chip 2.1 is connected to the I/O of receiving end FPGA module 2.2 by parallel bus
Interface signal processing unit, parallel bus are 8bit parallel bus, and it is single to realize that the I/O interface signal of receiving end FPGA module is handled
Data between member and receiving end conversion chip are transmitted.ULPI protocol conversion is usb protocol by receiving end conversion chip 2.1；With
Realize that the data between USB device are transmitted.The high-speed communication interface of receiving end FPGA module 2.2 is connected by high-speed serial bus
It is connected to receiving end optical module 2.3；
It is connected between transmitting terminal optical module 1.4 and receiving end optical module 2.3 by optical fiber.
Embodiment 2:
The usb signal light teletransmission control method based on FPGA that the present embodiment provides a kind of, which comprises the following steps:
Step 1: identification USB device；USB device identification process is respectively completed by receiving end and transmitting terminal；Receiving end is completed first
The USB device type recognized is transmitted to transmitting terminal, transmitting terminal and main-machine communication, is completed by the identification to USB device
The identification process of USB device；
Step 2: for USB device enumeration and realizing that data are transmitted.
As shown in Fig. 2, in the present embodiment, the step 1 the following steps are included:
Step 1.0, USB device are inserted into receiving end, start equipment identification process；
Step 1.1, receiving end FPGA module detect level change, primarily determine USB device speed type；
Step 1.2, receiving end FPGA module launch speed identify handshake operation, are communicated with USB device, determine USB device
Speed type；
USB device is inserted into information and speed type information package by step 1.3, receiving end FPGA module；
Packet is sent to receiving end optical module by step 1.4, receiving end FPGA module in the form of high-speed serial signals, by connecing
Receiving end optical module is converted to optical signal and is sent to transmitting terminal；
Step 1.5, transmitting terminal FPGA module receive the high-speed serial signals for being received and being converted by transmitting terminal optical module, by the information
Packet analyzing determines the USB device and set corresponding signal line of receiving end insertion；
Step 1.6, transmitting terminal FPGA module turn on the switch chip, and host is made to receive usb signal line level change；
The speed that step 1.7, transmitting terminal FPGA module response host issue identifies handshake communication, the USB that notice host is inserted into
The speed type of equipment；
Step 1.8, the resistance for configuring transmitting terminal, simulate corresponding USB device；
Step 1.9 terminates USB device identification process, is prepared to enter into device enumeration and data transfer phase.
As shown in figure 3, in the present embodiment, the step 2 the following steps are included:
Step 2.0, host initiate configuration and data transfer rate stream；
Step 2.1, transmitting terminal FPGA module parse USB data stream type；
The data stream type that step 2.2, transmitting terminal FPGA module are parsed according to step 2.1 determines directly forwarding or replys first
NAK forwards data packet again；
Step 2.3, transmitting terminal FPGA module are packaged the data flow that host issues, and it is sent in the form of high-speed serial signals
To transmitting terminal optical module, transmitting terminal optical module converts optical signal for the high-speed serial signals and is sent to receiving end；
Step 2.4, receiving end FPGA module receive the high-speed serial signals converted by receiving end optical module, and parse the data
Packet；
The data packet is packaged by step 2.5, receiving end FPGA module is sent to USB device by receiving end conversion chip；
Step 2.6, receiving end FPGA module receive and parse through the data packet of USB device reply；
The data packet of the reply is packaged and is sent to receiving end optical module by step 2.7, receiving end FPGA module；
Step 2.8, transmitting terminal FPGA module receive and parse through the data packet of reply；
Step 2.9, the data packet operational order for waiting host next time, directly reply to host for the data packet of the reply；
Step 2.10, the control operation for completing device enumeration or data transmission.
In the step 2.7, the data packet of the reply is packaged and with the shape of high-speed serial signals by receiving end FPGA module
Formula is sent to receiving end optical module；Improve data transfer speed.
Disclosed above is only the preferred embodiment of the present invention, but the present invention is not limited to this, any this field
What technical staff can think does not have creative variation, and without departing from the principles of the present invention made by several improvement and
Retouching, should all be within the scope of the present invention.
Claims (8)
1. a kind of usb signal light teletransmission control module based on FPGA, it includes transmitting terminal and receiving end, which is characterized in that institute
Stating transmitting terminal includes switch chip, and the first end of switch chip is connected to host side, the second end of switch chip by usb bus
The first end of transmitting terminal conversion chip is connected to by usb bus, the second end of transmitting terminal conversion chip is connected by parallel bus
It is connected to the I/O interface signal processing unit of transmitting terminal FPGA module, the I/O interface signal processing unit of transmitting terminal FPGA module is also
It is connected to the third end of switch chip, the high-speed communication interface of transmitting terminal FPGA module is connected to transmission by high-speed serial bus
Hold optical module；
The receiving end includes receiving end conversion chip, and the first end of receiving end conversion chip is connected to USB by usb bus and sets
Standby, the second end of receiving end conversion chip is handled single by the I/O interface signal that parallel bus is connected to receiving end FPGA module
The high-speed communication interface of member, receiving end FPGA module is connected to receiving end optical module by high-speed serial bus；
It is connected between transmitting terminal optical module and receiving end optical module by optical fiber.
2. a kind of usb signal light teletransmission control module based on FPGA according to claim 1, which is characterized in that send
Hold conversion chip that usb protocol is converted to ULPI agreement.
3. a kind of usb signal light teletransmission control module based on FPGA according to claim 1 or 2, which is characterized in that connect
ULPI protocol conversion is usb protocol by receiving end conversion chip.
4. a kind of usb signal light teletransmission control module based on FPGA according to claim 3, which is characterized in that parallel
Bus is 8bit parallel bus.
5. a kind of usb signal light teletransmission control method based on FPGA, which comprises the following steps:
Step 1: identification USB device；USB device identification process is respectively completed by receiving end and transmitting terminal；Receiving end is completed first
The USB device type recognized is transmitted to transmitting terminal, transmitting terminal and main-machine communication, is completed by the identification to USB device
The identification process of USB device；
Step 2: for USB device enumeration and realizing that data are transmitted.
6. a kind of usb signal light teletransmission control method based on FPGA according to claim 5, which is characterized in that described
Step 1 the following steps are included:
Step 1.0, USB device are inserted into receiving end, start equipment identification process；
Step 1.1, receiving end FPGA module detect level change, primarily determine USB device speed type；
Step 1.2, receiving end FPGA module launch speed identify handshake operation, are communicated with USB device, determine USB device
Speed type；
USB device is inserted into information and speed type information package by step 1.3, receiving end FPGA module；
Packet is sent to receiving end optical module by step 1.4, receiving end FPGA module in the form of high-speed serial signals, by connecing
Receiving end optical module is converted to optical signal and is sent to transmitting terminal；
Step 1.5, transmitting terminal FPGA module receive the high-speed serial signals for being received and being converted by transmitting terminal optical module, by the information
Packet analyzing determines the USB device and set corresponding signal line of receiving end insertion；
Step 1.6, transmitting terminal FPGA module turn on the switch chip, and host is made to receive usb signal line level change；
The speed that step 1.7, transmitting terminal FPGA module response host issue identifies handshake communication, the USB that notice host is inserted into
The speed type of equipment；
Step 1.8, the resistance for configuring transmitting terminal, simulate corresponding USB device；
Step 1.9 terminates USB device identification process, is prepared to enter into device enumeration and data transfer phase.
7. a kind of usb signal light teletransmission control method based on FPGA according to claim 5 or 6, which is characterized in that institute
State step 2 the following steps are included:
Step 2.0, host initiate configuration and data transfer rate stream；
Step 2.1, transmitting terminal FPGA module parse USB data stream type；
The data stream type that step 2.2, transmitting terminal FPGA module are parsed according to step 2.1 determines directly forwarding or replys first
NAK forwards data packet again；
Step 2.3, transmitting terminal FPGA module are packaged the data flow that host issues, and it is sent in the form of high-speed serial signals
To transmitting terminal optical module, transmitting terminal optical module converts optical signal for the high-speed serial signals and is sent to receiving end；
Step 2.4, receiving end FPGA module receive the high-speed serial signals converted by receiving end optical module, and parse the data
Packet；
The data packet is packaged by step 2.5, receiving end FPGA module is sent to USB device by receiving end conversion chip；
Step 2.6, receiving end FPGA module receive and parse through the data packet of USB device reply；
The data packet of the reply is packaged and is sent to receiving end optical module by step 2.7, receiving end FPGA module；
Step 2.8, transmitting terminal FPGA module receive and parse through the data packet of reply；
Step 2.9, the data packet operational order for waiting host next time, directly reply to host for the data packet of the reply；
Step 2.10, the control operation for completing device enumeration or data transmission.
8. a kind of usb signal light teletransmission control method based on FPGA according to claim 7, which is characterized in that described
In step 2.7, the data packet of the reply is packaged and is sent to receiving end in the form of high-speed serial signals by receiving end FPGA module
Optical module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595643.3A CN109062837A (en) | 2018-06-11 | 2018-06-11 | A kind of usb signal light teletransmission control module and method based on FPGA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595643.3A CN109062837A (en) | 2018-06-11 | 2018-06-11 | A kind of usb signal light teletransmission control module and method based on FPGA |
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| CN109062837A true CN109062837A (en) | 2018-12-21 |
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| CN201810595643.3A Pending CN109062837A (en) | 2018-06-11 | 2018-06-11 | A kind of usb signal light teletransmission control module and method based on FPGA |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889268A (en) * | 2019-01-28 | 2019-06-14 | 山东超越数控电子股份有限公司 | A kind of USB distance transmission system and method based on FPGA |
| CN114143135A (en) * | 2021-11-17 | 2022-03-04 | 天津市英贝特航天科技有限公司 | Remote data transmission device, system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315881A (en) * | 2010-07-09 | 2012-01-11 | 新科实业有限公司 | Optical communication module, universal serial bus cable with the same and processing method of data transfer thereof |
| CN103201729A (en) * | 2010-10-29 | 2013-07-10 | 意法爱立信有限公司 | High speed interchip universal serial bus monitoring |
| CN204883702U (en) * | 2015-08-19 | 2015-12-16 | 山东超越数控电子有限公司 | Usb signal teletransmission device |
-
2018
- 2018-06-11 CN CN201810595643.3A patent/CN109062837A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315881A (en) * | 2010-07-09 | 2012-01-11 | 新科实业有限公司 | Optical communication module, universal serial bus cable with the same and processing method of data transfer thereof |
| CN103201729A (en) * | 2010-10-29 | 2013-07-10 | 意法爱立信有限公司 | High speed interchip universal serial bus monitoring |
| CN204883702U (en) * | 2015-08-19 | 2015-12-16 | 山东超越数控电子有限公司 | Usb signal teletransmission device |
Non-Patent Citations (2)
| Title |
|---|
| 张继军 等: "基于FPGA的远程USB高速传输系统设计", 《舰船电子对抗》 * |
| 范志刚 和 张小辉: "一种基于FPGA技术的光纤传输USB信号方法", 《光通信技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889268A (en) * | 2019-01-28 | 2019-06-14 | 山东超越数控电子股份有限公司 | A kind of USB distance transmission system and method based on FPGA |
| CN114143135A (en) * | 2021-11-17 | 2022-03-04 | 天津市英贝特航天科技有限公司 | Remote data transmission device, system and method |
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